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/*
* Copyright © 2015 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Rafael Antognolli <rafael.antognolli@intel.com>
*
*/
#include <linux/module.h>
#include <drm/drm_print.h>
#include "drm_crtc_helper_internal.h"
MODULE_AUTHOR("David Airlie, Jesse Barnes");
MODULE_DESCRIPTION("DRM KMS helper");
MODULE_LICENSE("GPL and additional rights");
#if IS_ENABLED(CONFIG_DRM_LOAD_EDID_FIRMWARE)
/* Backward compatibility for drm_kms_helper.edid_firmware */
static int edid_firmware_set(const char *val, const struct kernel_param *kp)
{
DRM_NOTE("drm_kms_helper.edid_firmware is deprecated, please use drm.edid_firmware instead.\n");
return __drm_set_edid_firmware_path(val);
}
static int edid_firmware_get(char *buffer, const struct kernel_param *kp)
{
return __drm_get_edid_firmware_path(buffer, PAGE_SIZE);
}
static const struct kernel_param_ops edid_firmware_ops = {
.set = edid_firmware_set,
.get = edid_firmware_get,
};
module_param_cb(edid_firmware, &edid_firmware_ops, NULL, 0644);
__MODULE_PARM_TYPE(edid_firmware, "charp");
MODULE_PARM_DESC(edid_firmware,
"DEPRECATED. Use drm.edid_firmware module parameter instead.");
#endif
static int __init drm_kms_helper_init(void)
{
/*
* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
* but the module doesn't depend on any fb console symbols. At least
* attempt to load fbcon to avoid leaving the system without a usable
* console.
*/
if (IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) &&
IS_MODULE(CONFIG_FRAMEBUFFER_CONSOLE) &&
!IS_ENABLED(CONFIG_EXPERT))
request_module_nowait("fbcon");
return drm_dp_aux_dev_init();
}
static void __exit drm_kms_helper_exit(void)
{
/* Call exit functions from specific kms helpers here */
drm_dp_aux_dev_exit();
}
module_init(drm_kms_helper_init);
module_exit(drm_kms_helper_exit);
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